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  <title>Document</title>
  <style>
    /* 2.设置通用样式 */
    .icon {
      width: 1em;
      height: 1em;
      vertical-align: -0.15em;
      fill: currentColor;
      overflow: hidden;
    }
  </style>
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<body>
  <!-- 3. 挑选icon, 设置名称 -->
  <svg class="icon" aria-hidden="true">
    <use xlink:href="#icon-yiziA"></use>
  </svg>
  <svg class="icon" aria-hidden="true">
    <use xlink:href="#icon-xichenqiA"></use>
  </svg>
  <svg class="icon" aria-hidden="true">
    <use xlink:href="#icon-xishouchiA"></use>
  </svg>

  <!-- 1. 引入在线图标地址 -->
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